On Sep 23, 2003, at 4:58 AM, Graeme Reid wrote:
Inspired by the new H.225 and H.245 dissectors supplied by Andreas Sikkema ([EMAIL PROTECTED]),
I have taken a first cut at an H.450 dissector.� It currently handles H.450.1 and H.450.2 messages.� At this stage, it has only been tested using Blind Transfer success and failure cases, but Consultation Transfer should also work.
Unfortunately I have run out of time to work on it further (at least in the short-term) so I thought it better to post what I have done so far.
I assume that's why I get the warning
packet-h450.c:354: warning: `Extension_vals' defined but not used
i.e., the code to use it hasn't been written yet.
� The only known problem with it so far is that an invoke Id in a return result or return error of >32k
will be displayed as a negative number.
Well, the constrained invokeId is an unsigned integer (FT_UINT32), but the other invokeID is signed (FT_INT32), so values with the uppermost bit set will be treated as negative numbers.
The first of those is handled by "dissect_per_constrained_integer()", which treats the integer as unsigned. The latter is handled by "dissect_per_integer()", which treats it as signed; I don't have any of the ASN.1 specs handy, so I don't know whether there needs to be, for example, a "dissect_per_unsigned_integer()" routine.
There is one new file plus the diffs below.
Checked in (along with an update to Makefile.am).
